55 GMC vs 55 Chevy differences

[inboil]

HI all, Firstly, thanks for such a great resource.
I am restoring a 55 GMC truck, and a new cab is available through Classic Industries, only it's a Chevy, not a GMC. I know the dash will need to be changed, but is there anything else I should consider--fender mounting, hood hinge locations, mounting points, window regulators, door handles and glass?? This cab comes complete with doors. I expect small things, but I am trying to avoid major structural changes. Footstomper was kind enough to tell me that the cabs were the same, and to inquire about these other concerns. I already have new GMC second series fenders, and am going to use the original inner fenders, hood, grill etc. Any input is GREATLY appreciated!!

Sincerely,
William
Seattle, WA